The first thing to do is upgrade the firmware on the second router to something more capable. DD-WRT is the most popular open-source router firmware, and it’s the one that I used for this project. To upgrade the software on your router, you will need:

Awhile back, I was given a router. There was already a router at my house, so I started playing with it. I replaced the default software on it with DD-WRT, an open-source router firmware that gives any supported router features that are typical of much more expensive ones.

Several months later, I moved to my grandparents’ house. My desktop didn’t have a Wi-Fi card in it, and it would’ve been inconvenient and expensive to buy network cables, drill holes through a few walls, and run the cables from the main router to my computer.

Then I thought to myself, what if I could use my router as a Wi-Fi card? It turns out that I could, and you can too.